Let's get this math done. We have 818 and we're going to multiply it by 139. This is the same as taking 818 and adding it to itself 139 times.
Step 1: 0 + 818 = 818
Step 2: 818 + 818 = 1636
Step 3: 1636 + 818 = 2454
Step 4: 2454 + 818 = 3272
Step 5: 3272 + 818 = 4090
Step 6: 4090 + 818 = 4908
Step 7: 4908 + 818 = 5726
Step 8: 5726 + 818 = 6544
Step 9: 6544 + 818 = 7362
Step 10: 7362 + 818 = 8180
Step 11: 8180 + 818 = 8998
Step 12: 8998 + 818 = 9816
Step 13: 9816 + 818 = 10634
Step 14: 10634 + 818 = 11452
Step 15: 11452 + 818 = 12270
Step 16: 12270 + 818 = 13088
Step 17: 13088 + 818 = 13906
Step 18: 13906 + 818 = 14724
Step 19: 14724 + 818 = 15542
Step 20: 15542 + 818 = 16360
Step 21: 16360 + 818 = 17178
Step 22: 17178 + 818 = 17996
Step 23: 17996 + 818 = 18814
Step 24: 18814 + 818 = 19632
Step 25: 19632 + 818 = 20450
Step 26: 20450 + 818 = 21268
Step 27: 21268 + 818 = 22086
Step 28: 22086 + 818 = 22904
Step 29: 22904 + 818 = 23722
Step 30: 23722 + 818 = 24540
Step 31: 24540 + 818 = 25358
Step 32: 25358 + 818 = 26176
Step 33: 26176 + 818 = 26994
Step 34: 26994 + 818 = 27812
Step 35: 27812 + 818 = 28630
Step 36: 28630 + 818 = 29448
Step 37: 29448 + 818 = 30266
Step 38: 30266 + 818 = 31084
Step 39: 31084 + 818 = 31902
Step 40: 31902 + 818 = 32720
Step 41: 32720 + 818 = 33538
Step 42: 33538 + 818 = 34356
Step 43: 34356 + 818 = 35174
Step 44: 35174 + 818 = 35992
Step 45: 35992 + 818 = 36810
Step 46: 36810 + 818 = 37628
Step 47: 37628 + 818 = 38446
Step 48: 38446 + 818 = 39264
Step 49: 39264 + 818 = 40082
Step 50: 40082 + 818 = 40900
Step 51: 40900 + 818 = 41718
Step 52: 41718 + 818 = 42536
Step 53: 42536 + 818 = 43354
Step 54: 43354 + 818 = 44172
Step 55: 44172 + 818 = 44990
Step 56: 44990 + 818 = 45808
Step 57: 45808 + 818 = 46626
Step 58: 46626 + 818 = 47444
Step 59: 47444 + 818 = 48262
Step 60: 48262 + 818 = 49080
Step 61: 49080 + 818 = 49898
Step 62: 49898 + 818 = 50716
Step 63: 50716 + 818 = 51534
Step 64: 51534 + 818 = 52352
Step 65: 52352 + 818 = 53170
Step 66: 53170 + 818 = 53988
Step 67: 53988 + 818 = 54806
Step 68: 54806 + 818 = 55624
Step 69: 55624 + 818 = 56442
Step 70: 56442 + 818 = 57260
Step 71: 57260 + 818 = 58078
Step 72: 58078 + 818 = 58896
Step 73: 58896 + 818 = 59714
Step 74: 59714 + 818 = 60532
Step 75: 60532 + 818 = 61350
Step 76: 61350 + 818 = 62168
Step 77: 62168 + 818 = 62986
Step 78: 62986 + 818 = 63804
Step 79: 63804 + 818 = 64622
Step 80: 64622 + 818 = 65440
Step 81: 65440 + 818 = 66258
Step 82: 66258 + 818 = 67076
Step 83: 67076 + 818 = 67894
Step 84: 67894 + 818 = 68712
Step 85: 68712 + 818 = 69530
Step 86: 69530 + 818 = 70348
Step 87: 70348 + 818 = 71166
Step 88: 71166 + 818 = 71984
Step 89: 71984 + 818 = 72802
Step 90: 72802 + 818 = 73620
Step 91: 73620 + 818 = 74438
Step 92: 74438 + 818 = 75256
Step 93: 75256 + 818 = 76074
Step 94: 76074 + 818 = 76892
Step 95: 76892 + 818 = 77710
Step 96: 77710 + 818 = 78528
Step 97: 78528 + 818 = 79346
Step 98: 79346 + 818 = 80164
Step 99: 80164 + 818 = 80982
Step 100: 80982 + 818 = 81800
Step 101: 81800 + 818 = 82618
Step 102: 82618 + 818 = 83436
Step 103: 83436 + 818 = 84254
Step 104: 84254 + 818 = 85072
Step 105: 85072 + 818 = 85890
Step 106: 85890 + 818 = 86708
Step 107: 86708 + 818 = 87526
Step 108: 87526 + 818 = 88344
Step 109: 88344 + 818 = 89162
Step 110: 89162 + 818 = 89980
Step 111: 89980 + 818 = 90798
Step 112: 90798 + 818 = 91616
Step 113: 91616 + 818 = 92434
Step 114: 92434 + 818 = 93252
Step 115: 93252 + 818 = 94070
Step 116: 94070 + 818 = 94888
Step 117: 94888 + 818 = 95706
Step 118: 95706 + 818 = 96524
Step 119: 96524 + 818 = 97342
Step 120: 97342 + 818 = 98160
Step 121: 98160 + 818 = 98978
Step 122: 98978 + 818 = 99796
Step 123: 99796 + 818 = 100614
Step 124: 100614 + 818 = 101432
Step 125: 101432 + 818 = 102250
Step 126: 102250 + 818 = 103068
Step 127: 103068 + 818 = 103886
Step 128: 103886 + 818 = 104704
Step 129: 104704 + 818 = 105522
Step 130: 105522 + 818 = 106340
Step 131: 106340 + 818 = 107158
Step 132: 107158 + 818 = 107976
Step 133: 107976 + 818 = 108794
Step 134: 108794 + 818 = 109612
Step 135: 109612 + 818 = 110430
Step 136: 110430 + 818 = 111248
Step 137: 111248 + 818 = 112066
Step 138: 112066 + 818 = 112884
Step 139: 112884 + 818 = 113702

So, 818*139 = 113702